When comparing Things 2 vs Todo by Appigo, the Slant community recommends Things 2 for most people. In the question“What is the best cross-platform to-do list app?”Things 2 is ranked 22nd while Todo by Appigo is ranked 57th. The most important reason people chose Things 2 is:

At the beginning of every day, a yellow box appears at the top of the Today section, displaying all tasks scheduled for this day. You can investigate them, and then decide which ones you’ll have for that day and which one you’d rather want to delay.

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Pros

Pro

Daily review

At the beginning of every day, a yellow box appears at the top of the Today section, displaying all tasks scheduled for this day. You can investigate them, and then decide which ones you’ll have for that day and which one you’d rather want to delay.

Pro

Cloud sync

Users need to create an account for Things Cloud (the account can be created from any device). Once signed up, cloud sync will be active, and you’ll have to login on all of your devices to complete setup. From that point on, syncing happens in the background. It is invisible and always reliable.

Pro

Easy to set up and use

Things 2 works from the moment you start it up. Simply add a task and when you want it done by. You can also add notes to tasks or tag when you need them. Things allows you to quickly and easily start keeping track of your tasks.

Pro

Project support

Things 2 has a projects feature that allows you to organize your tasks together. You can select a project you need to get done and Things helps you focus on each task to get it done. You can even group projects together to focus on the most important aspect of your life at the time.

Pro

Nested tags

Pro

Great for GTD

Things is one of the best apps of doing Getting Things Done.

Pro

Customized calendar

The calendar view (when selecting a due date for a task) is a customized, scrollable version of the default iOS calendar view. This makes it look familiar, but also functional for Things 2's requirements.

Pro

Sync

Todo syncs quickly across all your devices.

Pro

Many possibilities

The app is easy to use and supports many work styles.

Cons

Con

Expensive if you buy apps for Mac, iPhone and iPad (all sold separately)

As at May 2016 if buying all three apps it cost $80! That said there is no annual subscription and I've been using Things for years and have only paid once so far.

Con

No supported time based/location based alarms

Other apps have these abilities, and they are very useful. Especially for a $10 app, it would be great to include these premium features.

Con

No Windows app

Unlike rival to-do list apps such as Todoist or Wunderlist, Todo does not have an official app for Windows.